Thermo Fans Conversion; Temperature Range?

[jay-rod]

Jared, I don't think you understand how a thermo fan is designed to work. You will gain a few kW if you set the thermo up the way it was intended, ie to only be working when the engine temperature gets too high.

Alternator only works harder if the thermo fan is on. The majority of the time the thermo isn't on. Only comes on when the engine temp reaches a pre-set thermostatted temperature. Therefore I gain a couple of kW because the engine doesn't need to drive the clutch style (factory) fan.

I understand, like others have said, clutch fan does the exact same thing.

Only reason i see to use thermos is if you dont have adequate airflow, or are drifting ( as airflow is minimal for drifting.)

But you certainly wont gain kw, especially if drifting as the thermo will be working extra hard